Functional Description - Stage Line DSP4TR Bedienungsanleitung

DSP4TR

1. Functional description

The special of the DSP4TR is to switch and control LED supplies
and other electronic ballasts with high momentary inrush currents
The problem to be solved is the summary of high inrush currents of
several ballasts which should work at one AC Line.
The DSP4TR is able to do that by switching at zero cross state and
using a precision timing between electronic and mechanical relays.
Because of this feature of the four potential free switches the
DSP4TR is able to bring more ballast online than normally at a 16A
circuit breaker.
In case of more than one switch becomes 100% at same time there
is a fix delay of approx. 40ms between all channels, so that they
never can get online at the same time.
A further special is the sequencer mode. In this case the DSP4TR
switches all four channels automatically on with an adjustable delay
time. This is an independent mode which starts with "power on" of
the DSP4TR.
Note:
Under all circumstances the DSP4TR follows an internal sequence
switching on semiconductor and mechanical relays for inrush
current reduction.
Further on it is impossible that more than one channel switches on
at the same time.
2
Example: MEAN WELL - HLP60H-36
cold start at 230V
with DSP2TR2A
12
55A (t 265µs measured @ 50% I
width
5A (t 4ms)
width
2
.
)
peak